#/usr/bin/env  python3
l = 1
r = 1
while r < 10:
    while l <= r:
        s = l * r
        if l == r:
            print(l,'*',r,'=',s,sep='')
        else:
            print(l,'*',r,'=',s,sep='',end='\t')
        l += 1
    r += 1
    l = 1


# 可以试试改用for 循环，代码会精简很多
